Isaac a



(No Model.)

I. A. CANFIELD.

CUTTING DIE.

No. 286,901. Patented Oct. 16, 1888. Y

NV PETERS Phan-h1' hnnphbr. WM D. C.

UNITED STATES lPATENT OFFICE.

ISAAC A. CANEIELD, 0E MIDDLETCWN, CONNECTICUT, ASSIGNCE To THE I. A. CANEIELD COMPANY, CE SAME PLACE.

CUTTING-DIE.

SPECIFICATION forming part of Letters Patent No. 286,901, dated October 16, 1883.

Application led January 27, 1883. (No model.) f

o a/ZZ whom it may concern:

Be it known that I, ISAAC A. GANEIELD, of

Middletown,`in the county of Middlesex and,

State of Connecticut, have invented certain new and useful Improvements in Cutting-Dies, of which the following'is a description, reference being had to the accompanying drawings, where- Y Figure 1 is afront view of my improved die, shown in place in an ordinary cutting-press. Fig. `2 is a top view'of the bed-plate or anvil, showing the adjustable guide for gaging position of blanks, and a blank in place. Fig. 3 is a detail rear View ofthe die or cutteron an enlarged scale. Fig. 4 is a view of the die in vertical cross-section on plane denoted by line .r x of Fig. 3. The die is shown as in the act of Cutting. Fig. 5 is a bottom view of the die on still larger scale.

My in vention relates particularly to the class of dies used for-cutting fibrous and elasticuna-z.

terial, textile fabrics, and the like; and it consists, mainly, in the use of a metallic die or cut ter having a blunt cutting-edge, and an anvil, the latter relatively harder than thecutter, which is formed, preferably, of soft steel or iron, while the anvil is of hardened iron or steel.

In the accompanying drawings, the letter a denotes a die-press of usual construction, having the reciprocating die-carrier I), in which is secured the die c, as by dovetailed tenon and mortise, and also the hardened metallic bed d. The die is forced upon and raised from the bed in the act of cutting by means of the mechanism of the press under direction of the attendant Workman. The die herein shown and described is used in cuttin g seamless dress-shields (armpit) composed of textile fabric or the like and india-rubber inlayers, and it is shaped in outline especially for that work. The face of the die c has a recess, in which a vertically-reciprocating press-plate, e, is suspended and protruded beyond the plane of the cuttingedge c by springs f, and bearing the guide-pins edge, as in the old forms of dies, but is flattened to form a blunt edge, aS seen in Figs. 4 and 5. This die is made of iron or soft untempered steel, which .is easily formed to the required shape, (for printing' the edge of the material in the style illustrated,) and this cuttingedge does not splinter and break o'r change shape bytempering, as is common in the hard- 'the die cuts the shield to the required shape.

The bed (preferably cast) is made of hardened iron or steel, that is not worn or cut by the die, and the slight wear of the latter is easily remedied by restoring the edge by grinding or filing, by reason. of the softness of the material of Whichit is composed.

I nd by actual use that my improved die or cutter and anvil effect a great saving in material and labor, and that when made in other forms than that herein described, as with a rotary disk-shaped cutter of iron or soft steel with blunt edge and a rotary anvil of hardened iron or steel, the same gain is made over old devices.

I claim as my improvement- 1. In combination, a die or cutter of soft iron, steel, or similar metal, and an anvil of hardened metal, all substantially as described.

2. In a cutting device, a die of soft steel or iron, having ablunt cutting-edge, in combination with a bed or anvil of hardened steel or its equivalent, all substantially as described.

3. In a cutting device, a die, c, with arecessed face and guide-holes, in combination with a reciprocating press-plate, e, guides g, springs f, and bed d, all substantially as described.

ISAAC A. CANFIELD.

Witnesses:

E. G. CAMP, E. C. BUTLER. 

